diff --git a/requirements_dev.txt b/requirements_dev.txt
index 5fe4509..0b549fb 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -4,7 +4,7 @@ wheel==0.37.1
 watchdog==2.1.8
 flake8==4.0.1
 tox==3.25.0
-coverage==6.2
+coverage==6.4.1
 cryptography==35.0.0
 Sphinx==4.5.0
 PyYAML==5.4.1